53-year old track athlete banned 2 years

COLORADO SPRINGS, Colo. -- The United States Anti-Doping Association says that masters athlete Byron Duhon has been banned for two years after violating drug-testing rules.

The USADA says the 53-year-old track and field athlete refused to comply with sample collectors during the World Masters Athletics Championships in July.

His ban began Oct. 21, but all of Duhon's results from the start of the world championships until then are forfeit.